;; This is an operating system configuration template for testing postfix.

(use-modules (gnu))
(use-service-modules mail networking ssh)
(use-package-modules ssh)

(operating-system
  (host-name "komputilo")
  (timezone "Europe/Berlin")
  (locale "en_US.utf8")

  ;; Boot in "legacy" BIOS mode, assuming /dev/sdX is the
  ;; target hard disk, and "my-root" is the label of the target
  ;; root file system.
  (bootloader (bootloader-configuration
                (bootloader grub-bootloader)
                (target "/dev/sdX")))

  ;; Allow run-vm.sh --nographic
  (kernel-arguments '("console=tty0" "console=ttyS0"))
  (file-systems (cons (file-system
                        (device (file-system-label "guix"))
                        (mount-point "/")
                        (type "ext4"))
                      %base-file-systems))

  ;; This is where user accounts are specified.  The "root"
  ;; account is implicit, and is initially created with the
  ;; empty password.
  (users (cons (user-account
                (name "alice")
                (comment "Bob's sister")
                (group "users")

                ;; Adding the account to the "wheel" group
                ;; makes it a sudoer.
                (supplementary-groups '("wheel")))
               %base-user-accounts))

  ;; Add services to the baseline: a DHCP client, POSTFIX and
  ;; an SSH server.
  (services (append (list (service dhcp-client-service-type)
                          (service openssh-service-type
                             (openssh-configuration
                              (openssh openssh-sans-x)
                              (use-pam? #f)
                              (port-number 2222)
                              (permit-root-login #t)
                              (allow-empty-passwords? #t)
                              (password-authentication? #t)))
                          (service mail-aliases-service-type
                                   '(("postmaster" "root")))
                          (service postfix-service-type))
                    %base-services)))
